Briggs & Stratton NEMA 3R manual Power Wiring Interconnections

Models: NEMA 3R

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Power Wiring Interconnections

All wiring must be the proper size, properly supported and protected by conduit. Utility and generator conduits must enter enclosure above circuit breaker bus in transfer switch. No conductors shall pass over top of control board. Branch circuit conduits must enter sides or bottom of enclosure adjacent to circuit breaker terminals. Do Not use large knockouts in bottom of enclosure.

warning

Low voltage wire cannot be installed in same conduit as power voltage wiring.

Failure to follow above warning could cause personal injury, damage and/or malfunction of equipment.

Complete the following connections between the transfer switch, main distribution panel, utility power and generator, as shown below.

1.Ensure utility power is turned OFF.

2.Connect main distribution panel feeder conductors from installer-supplied two pole maximum 100 amps “essential circuit breaker” to transfer switch terminals marked “UTILITY”.

3.Connect utility Neutral feeder conductor to the transfer switch “NEUTRAL” terminal.

4.Connect main distribution panel “GND” to transfer switch “GROUND” terminal.

5.Connect all essential branch circuit wiring to appropriate circuit breakers in transfer switch.

6.Connect essential branch circuit Neutral conductors to transfer switch “NEUTRAL” terminals.

From Main

 

Distribution

From Generator

Panel

Utility

Connection

Generator

Connection

 

Supervisory

 

Contacts

 

Neutral

Ground Bus

Terminal

 

 

Ground Bus

To

To

Essential

Essential

Branch

Branch

Circuits

Circuits

Essential Branch

Circuit Buss

7

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Briggs & Stratton NEMA 3R manual Power Wiring Interconnections